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08-30-2012, 10:37 PM #1Member
- Join Date
- Sep 2011
- Lakewood, CO
proper way to install 7m pistons?
Hey guys some of you may know im doing a 7mgte swap into my 82 and i am so confused about which way the pistons and rods should face? How do i know which way is the front? Im sure some may say the same way i took them out but i was so busy putting them in order from 1 to 6 that i forgot which way to lay them.. i have 2 diferent numbers on my rods also, the 1st 3 have a #1 stamped on them and the last 3 have a #2 stamped on them.. wtf?
"Cheap, Fast, Reliable, pick two and thats what you get in a car"
08-30-2012, 11:11 PM #2
I don't think it matters.RIP Les Grover
* WANTED mint '84 P-type, any color, no mods, manual trans *
08-30-2012, 11:19 PM #3
The piston should have an arrow on the front, and that points towards the front of the engine. The numbers are for rod bearing sizes.Blue '85 P-type 5 speed- 1JZGTE Small single, 14 pounds of boost. For now..
08-30-2012, 11:42 PM #4
Pistons and rods both have a "front" mark that faces towards the front of the motor.
Numbers are for the factory bearing sizes, unless you are extremely OCD and plan to re-assemble the exact way Toyota does it with matching bearings per rod I wouldn't worry about the numbers.
08-31-2012, 11:15 AM #5
08-31-2012, 03:51 PM #6
just dont put them in wrong, or kaboooooooooooooom. valves will hit the pistons if backwards5M-GTE 86 5sp cressida certified used toyota edition
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